Implementation of the fractional-step, artificial compressibility with pressure projection (FSAC-PP) method into openfoam for unsteady flows

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dc.contributor.authorSánchez Gil, Jesús Miguel
dc.contributor.authorTeschner, Tom-Robin
dc.contributor.authorLászló, Könözsy
dc.date.accessioned2022-01-05T10:21:56Z
dc.date.available2022-01-05T10:21:56Z
dc.date.issued2021-12-03
dc.description.abstractCommercial and open-source CFD solvers rely mostly on incompressible approximate projection methods to overcome the pressure-velocity decoupling, such as the SIMPLE (Patankar, 1980) or PISO (Issa, 1986) algorithm. Incompressible methods based on the Artificial Compressibility method (Chorin, 1967) lack a mechanism to evolve in time and need to be supplemented by a real time derivative through the dual time scheme. The current study investigates the implementation of the explicit dual time discretization of the Artificial Compressibility method into OpenFOAM and extends on that by applying the dual time scheme to the incompressible FSAC-PP method (Könözsy, 2012). Applied to the Couette 2D flow at Re=100 and Re=1000, results show that for both methods accurate time evolutions of the velocity profiles are presented, where the FSAC-PP methods seemingly produces smoother profiles compared to the AC method, especially during the start-up of the simulation.en_UK
dc.identifier.citationSánchez Gil JM, Teschner T-R, Könözsy L. (2021) Implementation of the fractional-step, artificial compressibility with pressure projection (FSAC-PP) method into openfoam for unsteady flows. Multidisciplinary Sciences, Volume 11, Issue 5, December 2021, pp. 85-91en_UK
dc.identifier.issn2062-9737
dc.identifier.urihttps://doi.org/10.35925/j.multi.2021.5.9
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/17359
dc.language.isoenen_UK
dc.publisherUniversity of Miskolcen_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectComputational Fluid Dynamicsen_UK
dc.subjectIncompressible Flowsen_UK
dc.subjectDual-Time Steppingen_UK
dc.subjectOpenFOAMen_UK
dc.titleImplementation of the fractional-step, artificial compressibility with pressure projection (FSAC-PP) method into openfoam for unsteady flowsen_UK
dc.typeArticleen_UK

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